v3.25.2
Borrowings - Narrative (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Federal Reserve Discount Window    
Debt Instrument [Line Items]    
Remaining undrawn capacity $ 10,800 $ 11,500
Revolving Credit Facility | Unsecured Debt    
Debt Instrument [Line Items]    
Remaining undrawn capacity 500 500
Variable Interest Entity, Primary Beneficiary    
Debt Instrument [Line Items]    
Remaining undrawn capacity 2,600 2,600
Variable Interest Entity, Primary Beneficiary | Committed Capacity    
Debt Instrument [Line Items]    
Remaining undrawn capacity 2,100 2,100
Variable Interest Entity, Primary Beneficiary | Uncommitted Capacity    
Debt Instrument [Line Items]    
Remaining undrawn capacity $ 450 $ 450